Wife and sex

Hi all i have been married for 4 years, i found out the other day that my wife before i met her was having sex with different people at least 5 times a day i was shocked the lad emailed me two pics of her using a sex toy for him and his 5 friends before they fucked her one by one since i have been with her i caught her having sex with another man and watched her getting laid she never seen me so i pulled my self off and wonder if she is still doing it so i put cctv in the bedroom where she caught see it .

The problem i have is i would rather know or be there while she is getting fucked rather than not knowing she always uses her sex toys alot and masterbates while i am in the bath and she is on the bed.

What should i do ?